Index of Symptom-to-FRU Error Message
LCD-Related Symptoms
Symptom / Error | Check or do the following in sequence |
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LCD backlight doesn't work | Run “Load Setup Defaults” in BIOS Setup Utility, then reboot |
LCD is too dark | system. |
LCD brightness cannot be adjusted | Reconnect the LCD connectors. |
LCD contrast cannot be adjusted | Keyboard (if contrast and brightness function key doesn't |
| work). |
| LCD inverter ID |
| LCD cable |
| LCD inverter board |
| LCD |
| Mainboard |
|
|
Unreadable LCD screen | Reconnect the LCD connector |
Missing pels in characters | LCD inverter ID |
Abnormal screen | LCD cable |
Wrong color displayed | LCD inverter board |
| LCD |
| Mainboard |
|
|
LCD has extra horizontal or vertical lines | LCD inverter ID |
displayed. | LCD inverter board |
| LCD cable |
| LCD |
| Mainboard |
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Symptom / Error | Check or do the following in sequence |
|
|
Indicator incorrectly remains off or on, but | Reconnect the LCD inverter board. |
system runs correctly | Mainboard |
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Symptom / Error | Check or do the following in sequence |
|
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Power shuts down during operation | Power source (battery pack and power adapter). See “Power |
| System Check” on page 89. |
| Battery pack |
| Power adapter |
| Hard disk drive & battery connection board |
| Mainboard |
|
|
The system doesn’t | Power source (battery pack and power adapter). See “Power |
| System Check” on page 89. |
| Battery pack |
| Power adapter |
| Hard disk drive & battery connection board |
| Mainboard |
|
|
98 | Chapter 4 |
